TYPO3 Core

Ill-formed HTML may crash the RteHtmlParser. This can e.g. occur if pre-generated source is being added to a text element and subsequently saved without switching back to the RTE view before. This bug may be related to #93302 but this has not yet been verified.

To trigger the bug you can create a text element, switch to the Source view and paste in HTML such as the following:

<ol><li>foo</li><li>bar</li><ol>

(note the incorrectly closed "ol" tag)

After saving each attempt to edit the new record again will fail with the following stack trace:

TYPO3\CMS\Core\Error\Exception: PHP Warning: Undefined array key 2 in /server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Html/RteHtmlParser.php line 473
#37 /sysext/core/Classes/Error/ErrorHandler.php(137): TYPO3\CMS\Core\Error\ErrorHandler::handleError
#36 /sysext/core/Classes/Html/RteHtmlParser.php(473): TYPO3\CMS\Core\Html\RteHtmlParser::TS_transform_rte
#35 /sysext/core/Classes/Html/RteHtmlParser.php(198): TYPO3\CMS\Core\Html\RteHtmlParser::transformTextForRichTextEditor
#34 /sysext/backend/Classes/Form/FormDataProvider/TcaText.php(65): TYPO3\CMS\Backend\Form\FormDataProvider\TcaText::addData
#33 /sysext/backend/Classes/Form/FormDataGroup/OrderedProviderList.php(66): TYPO3\CMS\Backend\Form\FormDataGroup\OrderedProviderList::compile
#32 /sysext/backend/Classes/Form/FormDataGroup/TcaDatabaseRecord.php(40): TYPO3\CMS\Backend\Form\FormDataGroup\TcaDatabaseRecord::compile
#31 /sysext/backend/Classes/Form/FormDataCompiler.php(102): TYPO3\CMS\Backend\Form\FormDataCompiler::compile
#30 /sysext/backend/Classes/Controller/EditDocumentController.php(1151): TYPO3\CMS\Backend\Controller\EditDocumentController::makeEditForm
#29 /sysext/backend/Classes/Controller/EditDocumentController.php(1023): TYPO3\CMS\Backend\Controller\EditDocumentController::main
#28 /sysext/backend/Classes/Controller/EditDocumentController.php(431): TYPO3\CMS\Backend\Controller\EditDocumentController::mainAction
#27 /sysext/backend/Classes/Http/RouteDispatcher.php(91): TYPO3\CMS\Backend\Http\RouteDispatcher::dispatch
#26 /sysext/backend/Classes/Http/RequestHandler.php(110): TYPO3\CMS\Backend\Http\RequestHandler::handle
#25 /sysext/core/Classes/Middleware/ResponsePropagation.php(34): TYPO3\CMS\Core\Middleware\ResponsePropagation::process
#24 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#23 /sysext/backend/Classes/Middleware/SiteResolver.php(69): TYPO3\CMS\Backend\Middleware\SiteResolver::process
#22 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#21 /sysext/backend/Classes/Middleware/AdditionalResponseHeaders.php(41): TYPO3\CMS\Backend\Middleware\AdditionalResponseHeaders::process
#20 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#19 /sysext/backend/Classes/Middleware/OutputCompression.php(47): TYPO3\CMS\Backend\Middleware\OutputCompression::process
#18 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#17 /sysext/backend/Classes/Middleware/BackendUserAuthenticator.php(165): TYPO3\CMS\Backend\Middleware\BackendUserAuthenticator::process
#16 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#15 /sysext/backend/Classes/Middleware/BackendRouteInitialization.php(86): TYPO3\CMS\Backend\Middleware\BackendRouteInitialization::process
#14 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#13 /sysext/backend/Classes/Middleware/ForcedHttpsBackendRedirector.php(55): TYPO3\CMS\Backend\Middleware\ForcedHttpsBackendRedirector::process
#12 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#11 /sysext/backend/Classes/Middleware/LockedBackendGuard.php(75): TYPO3\CMS\Backend\Middleware\LockedBackendGuard::process
#10 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#9 /sysext/core/Classes/Middleware/NormalizedParamsAttribute.php(45): TYPO3\CMS\Core\Middleware\NormalizedParamsAttribute::process
#8 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#7 /sysext/core/Classes/Middleware/VerifyHostHeader.php(55): TYPO3\CMS\Core\Middleware\VerifyHostHeader::process
#6 /sysext/core/Classes/Http/MiddlewareDispatcher.php(172): Psr\Http\Server\RequestHandlerInterface@anonymous/server/data/www/apache2.2/mfc-corporate/releases/109/public/typo3/sysext/core/Classes/Http/MiddlewareDispatcher.php:138$267::handle
#5 /sysext/core/Classes/Http/MiddlewareDispatcher.php(78): TYPO3\CMS\Core\Http\MiddlewareDispatcher::handle
#4 /sysext/core/Classes/Http/AbstractApplication.php(86): TYPO3\CMS\Core\Http\AbstractApplication::handle
#3 /sysext/backend/Classes/Http/Application.php(72): TYPO3\CMS\Backend\Http\Application::handle
#2 /sysext/core/Classes/Http/AbstractApplication.php(100): TYPO3\CMS\Core\Http\AbstractApplication::run
#1 /index.php(20): {closure}
#0 /index.php(21): null

Furthermore, any attempt to view the page in the Frontend will lead to similar behaviour, as TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::parseFunc makes use of the RteHtmlParser as well.